You can also add notes to any item in the diagram. For example, if a report depends on a library, it would be useful to list the specific element or elements in the library that the report uses. Hover the mouse pointer over the item. When you see two arrows with boxes, as shown in Figure 25-6, click one of the arrows and drag the line to an area in which to create a note. When you release the mouse button, a Create Note Attachment button appears. Click it to create a note.